The Intel Optane SSD 900P series are the first consumer grade NVMe PCIe SSDs available using Optane memory. This is a new class of memory based on new 3D XPoint lithography. The 280 GB version is available in either a U.2 15mm or half height half length add-in card form, both with a PCIe 3.0 x 4 interface. A 480 GB version is also available. The impressive benchmarks from this SSD (sequential read speeds of 2500 MB/s and sequential write of 2000 MB/s) are consistent with Intel’s reported specifications. The 280GB 900P is about 10% faster at sequential read/write than the next best NVMe PCIe flash based SSD, the Samsung 960 Pro. However, the 280 GB 900P really excels at random 4K reads and writes. Specifically, it is about 4 times faster than the 960 Pro at random 4K reads. Since on average, about 50% of typical consumer disk access is sequential reads or writes, the full benefits of the 280GB 900P may not be relevant for all users. Early access to this new technology comes at a premium, the 280GB 900P costs approximately twice as much per gigabyte compared to the 960 Pro. These drawbacks will no doubt influence the mass adoption of this class of memory in its infant stage. However, it is no less exciting for the industry and is indicative of the speeds that we can expect to achieve as standard in the future. [Nov '17SSDrivePro]
The Evo is remarkable in that, like the Sandisk Extreme II, it features a second level cache. For the 250 GB Evo this consists of a 3 GB Turbowrite cache (TWC) which is a block of high speed Flash Memory. When the TWC is exhausted write speeds drop by approximately 50% but that won't often happen under typical consumer workloads. In terms of raw performance, even with its cache, the Evo still isn't the fastest drive. With a real world speed index reading of 439 MB/s the EVO is however, within reach of the two speed leaders (Vector and 850 Pro). At a price point of $130 the Evo is around 30% cheaper making it the best value for money SSDs I have seen in 2014. Comparing the Evo and the Sandisk Ultra Plus shows that the Evo is the winner but the Sandisk may be a viable alternative thanks to its cache-free, and therefore more consistent performance during extended writes. [Aug '14SSDrivePro]
Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]
Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.